Camping and Hiker Gear by ALPS Mountaineering
Sleeping Bags /
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ALPS Mountaineering Fusion 40°
Zipperless mummy bag
The Fusion 40-degree sleeping bag is an innovative, zipperless hybrid design featuring a down-filled top and synthetic TechLoft Micro-filled bottom. Our TechLoft Micro insulation consists of multiple denier staple-length fibers that have a siliconized finish for maximum insulation, loft, and compactness. It is an ultra-lightweight insulation that has a tremendous weight-to-warmth ratio. The Fusion's top quilt uses RDS certified 600-fill hydrophobic down. The 380T 20D nylon shell and liner fabric provide a soft and comfortable feel.

This unique, zipperless bag design allows for ultimate comfort and ease of use. The quilted down top is unattached on three sides allowing it to fold open for more freedom, or tuck in for added warmth. An easy toggle system eliminates gaps when the quilted top is tucked in—keeping the heat locked in. The Fusion also offers an adjustable drawstring hood for colder nights at camp. The 82" length accommodates most people. The Fusion is the perfect light-weight, backpacking sleeping bag for mild-weather camping.
  • 380T 20D nylon fabric
  • Upper fill - hydrophobic down
  • Bottom fill - TechLoft Micro
  • Hood can be adjusted using the drawcord
  • Quilted down top is unattached on three sides allowing it to fold open for more freedom
  • The down top can be tucked in and secured with a toggle system when more warmth is required
  • Toggle system eliminates gaps when quilted down top is tucked in
  • 82" long length accommodates most people
  • Compression stuff sack
  • Dimensions: 32" x 82"
  • Fill weight: Top 6 oz. / Bottom 18 oz.
  • Weight: 2 lbs. 2 oz.
  • Stuff sack size: 7" x 16"
Product Number
ItemProduct Number
Fusion 404300433
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